Friday 5 March 2010 06.17 EST
First published on Friday 5 March 2010 06.17 EST

She might be the hottest star of the moment, but Lady Gaga's fans may feel slightly cool about buying tickets for her next set of UK concerts – it has emerged they will cost two to three times as much as those for her current shows, despite being part of the same tour.

Tickets for the triple Brit Award winner's current round of UK arena shows, including a date in Birmingham tonight, were priced at £27.50 to £35. But the extra dates in May and June, which go on sale next week, will be priced at £50 to £75.

Perhaps unsurprisingly, some fans of the star are crying foul, with some even wondering whether it is a case for trading standards.

Live music fans are used to artists announcing, as she has, that due to "overwhelming" demand extra shows have been added – but it is unusual for the additional concerts to cost so much more.

One asked: "Will we be getting a brand new show when the tour comes back to the UK in May? Or will the show be the same, and fans will be expected to pay £75 for a show that only cost them £27 to see months earlier?"

He added: "I will gladly pay the extra if we are promised something extra - however, surely it would be a case for trading standards ... I am a big Gaga fan but the advertised ticket prices on Live Nation have pissed me off - I feel like someone is taking the piss with what we are expected to pay."

Another said: "I was sure the price will go up but this is steep!!!!"

The Paparazzi singer's three higher-priced dates are Birmingham on 28 May, London on 30 May and Manchester on 2 June. She played the same venues in these three cities on her current jaunt.

Earlier this week, the singer told the Daily Star: "It will be a brand new show." Live Nation did not mention the show was getting a makeover when, on Monday, it announced the additional dates; it said they were an "extension of the Monster Ball Tour". And it did not mention the ticket prices.

It is understood that at least some of the current UK dates were promoted by another firm, AEG Live.

In a statement, Live Nation said: "What was a small arena/theatre production is now a massive, first-rate arena production. Ticket prices for the previous dates were set long before the current Monster Ball show was developed. Ticket prices are comparable and fair."

Asked if the new prices could be seen to be exploiting Lady Gaga's fame, the company added: "Any sense of understanding about the economics of our business would answer the exploitation question.

"You can be assured the artist's manager, agents, business manager and lawyer can/would protect against any potential for exploitation – not to mention the suggestion that would actually be contemplated by us is out of line."